Over the past decade, some of the biggest changes to the international tax framework have come out of the Paris-based OECD—from the worldwide crackdown on base erosion and profit shifting to the two-pillar plan to overhaul global tax rules. Pascal Saint-Amans, the man at the helm of the organization's tax division through those years, recently announced he would be stepping down from his role at the end of October. Bloomberg Tax's Isabel Gottlieb sat down with Saint-Amans to talk about what he's doing next, what it will take to get the tax deal's Pillar One over the finish line, and the future of international cooperation on environmental taxation. Do you have feedback on this episode of Talking Tax? Give us a call and leave a voicemail at 703-341-3690.